U.S. home sales plummeted in July to a level not seen in more than a decade, spurring fears of renewed weakness in housing prices and the broader economy.

Sales of previously owned homes fell 27.2% from June to a seasonally adjusted annual rate of 3.83 million, the National Association of Realtors said Tuesday, the lowest level since the industry group started its tally in 1999.

he expiration of a home-buyer tax credit in the spring was expected to damp buying, though less severely. Economists said the sales drop—together with a corresponding rise in the inventory of unsold homes—meant another decline in housing prices was on the horizon. House prices had stabilized last year after declining since 2006.

High unemployment and meager wage growth already are driving many Americans’ reluctance to make major purchases, so a return of falling home equity could further depress confidence and consumer spending.